[mythtv-users] MythTV on AMD64 Gentoo

Shawn core at enodev.com
Thu Sep 9 21:09:23 EDT 2004

Seemless, except that you cannot mix 32 and 64 in the same runtime
image, and means, as I understand it:

1. no 32bit modules in a 64bit kernel (and vice versa)
2. no 64bit binaries run while running a 32bit kernel
3. no 32bit libs linked into a 64bit program (and vice versa)
4. no 32bit programs runtime linked with 64bit ld-linux.so, that's
what /emul is for.

The emulation isn't really that, as such. It provides a linker and libs
for those apps that are 32bit, because of rule #3.

...if I'm not 100% right, I'm right enough to help some of the more
confused people.

On Thu, 2004-09-09 at 16:55 +0100, Stephen Tait wrote:
> At 15:17 09/09/2004, you wrote:
> >~x86 works great.. as should amd64 native...  The only
> >place (well not the only place but a notable place)
> >you are going to run into trouble is if you have an
> >ATI video card as they don't have 64bit binary
> >drivers.. As far as  I know ivtv is open source and
> >thus should compile fine.
> >
> >Bob
> I have to admit, I'm finding this whole thing very odd. I was under the 
> impression that AMD64 allowed for seamless integration of native 32 and 64 
> bit code (barring things like mixing a 64bit kernel and 32bit device 
> drivers of course) without any kind of kernel emulation layer...?
> Can anyone clarify? I've not had the chance to set up my own AMD64 system 
> yet (too damned expensive for the kit I want) but didn't think the mixing 
> and matching of 32 and 64bit apps was going to be an issue - if it is 
> that's a big problem since there's alot of stuff I use in gentoo that's not 
> available for AMD64 yet... 

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